Now, to the first-ever nationwide crackdown on tanning beds. It's an effort to cut down on the deadliest form of skin cancer. The government is requiring tanning beds to have warning labels, trying to keep teens from using them. ABC's Rebecca Jarvis has the story. Reporter: The fda announcing tanning beds must now carry warning labels. Along the same lines of those on cigarette containers, cautioning anyone under 18 not to use them. We as dermatologists have been trying to deal with this issue for the last 20 years. Reporter: The indoor tanning association calling the new rules excessive. Telling ABC news their products used properly are safe. But a new study released just this week from the university of Minnesota, finds that people who use tanning beds have a much greater risk of getting melanoma, the deadliest of skin cancers, even if they have never been burned. And a separate study finds tanning indoors increases the risk of melanoma by 59%. It's almost an epidemic of melanoma in young women that can be traced to these tanning beds. Reporter: By 12th grade, 32% of girls say they've used a tanning bed. A handful of states already use tan bans, including California, Illinois, Louisiana, Minnesota, Nevada, Oregon, Texas and Vermont. Barring anyone under 19 from using tanning beds. For "Good morning America," Rebecca Jarvis, ABC news, New York.

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